Micro particles based on polystyrene, superparamagnetic, red fluorescent

100

iron oxide, ≥20%

1% (solid)

10 μm std dev ≤0.3 μm, coeff var 2.1%

1.3-2.3 g/cm³ (particle specific gravity)

λ_ex 650 nm; λ_em 678 nm

2-8°C